The RHCE, RHCT is all hans on these days...no written portions on either test.
Folks that take the test sign a non-disclosure agreement stating that they will not talk about anything on the exam to anyone, so I doubt you'll get any type of help there.
What I can suggest is lots of practice! I would download the manuals from Red Hat's site that cover system administration. Also download the reference guide:
http://www.redhat.com/docs/manuals/enterprise/
Go over these documents along with the course outline for the RHCT or RHCE and you should be somewhat prepared. I also recommend the Red Hat Linux Bibles. Go over the material until you are sick of looking at it, then you'll be in good shape. If you or your employer has the money, I HIGHLY recommend taking the classes.